| 不同稻作制下红壤性水稻土磷吸持作用的研究 |
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| 引用本文： | 张杨珠,肖永兰,袁正平,蒋健容. 不同稻作制下红壤性水稻土磷吸持作用的研究[J]. 湖南农业大学学报(自然科学版), 1991, 0(Z1) |
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| 作者姓名： | 张杨珠 肖永兰 袁正平 蒋健容 |
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| 作者单位： | 湖南农学院农学系 长沙 |
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| 摘 要： | 以耕型第四纪红壤为供试土样,淹水种稻,进行水田耕作制模拟试验、室内培养试验和恒温吸附试验,研究了旱改水以及不同稻作制对土壤磷的吸持作用的影响,并探讨了旱改水以及不同稻作制条件下土壤对磷的吸持作用变化的原因。
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| 关 键 词： | 水稻土 耕作制度 地下水位 土壤有机质 土壤磷素/吸持作用 |
EFFECTS OF VARIOUS CROPPING SYSTEMS ON PHOSPHATE RETENTION BY PADDY SOIL DEVELOPED FROM RED EARTH |
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| Zhang Yangzhu Xiao Yonglan Yuan Zhengping Jiang Jianrong. EFFECTS OF VARIOUS CROPPING SYSTEMS ON PHOSPHATE RETENTION BY PADDY SOIL DEVELOPED FROM RED EARTH[J]. Journal of Hunan Agricultural University, 1991, 0(Z1) |
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| Authors: | Zhang Yangzhu Xiao Yonglan Yuan Zhengping Jiang Jianrong |
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| Abstract: | A study was conducted on the effect of flooding of arable red soil and various rice-based cropping systems on phosphate retention by soil. Phos-phate retention by red soil increased significantly after flooding. The treatment of early rice-late rice-winter flooding had much more significant effect on the increase in phosphate retention by soil than the treatments of early rice-late rice-winter manure and of early rice-late rice-winter rape. The change in pho-sphate retention by soil was consistent with the change in amorphous Fe oxide content of soils in various cropping system treatments. Removal of free Fe oxi-de and amorphous Fe oxide decreased significantly phospate retention by soil in all treatments. |
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| Keywords: | paddy soil farming system ground water level soil organic matter soil phosphorus/phosphate retention by soil |
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